Metal module for transformer and manufacturing method thereof

Abstract

The present disclosure provides a metal module including a first metal sheet and a second metal sheet. The first metal sheet is electrically connected to a primary winding of a transformer. The second metal sheet is electrically connected to a secondary winding of the transformer. There is a distance between the first metal sheet and the second metal sheet, and the metal module is disposed outside a magnetic core of the transformer.

What is claimed is: 
     
         1 . A metal module applied to a transformer, comprising:
 a first metal sheet electrically connected to a primary winding of the transformer; and   a second metal sheet electrically connected to a secondary winding of the transformer,   wherein there is a distance between the first metal sheet and the second metal sheet, and the metal module is disposed outside a magnetic core of the transformer.   
     
     
         2 . The metal module according to  claim 1 , further comprising a dielectric layer, wherein the dielectric layer covers the first metal sheet and the second metal sheet. 
     
     
         3 . The metal module according to  claim 2 , wherein a part of the dielectric layer is disposed between the first metal sheet and the second metal sheet, and the part of the dielectric layer is configured to electrically insulate the first metal sheet and the second metal sheet from each other. 
     
     
         4 . The metal module according to  claim 3 , wherein the dielectric layer is a tape or a solid glue. 
     
     
         5 . The metal module according to  claim 1 , wherein the first metal sheet and the second metal sheet are copper foil metal sheets. 
     
     
         6 . The metal module according to  claim 1 , wherein the metal module is configured to offset a part of an interlayer capacitance of the transformer, and a size of the first metal sheet and the second metal sheet depends on a magnitude of the interlayer capacitance needed to be offset. 
     
     
         7 . The metal module according to  claim 1 , comprising a plurality of metal modules, and the plurality of metal modules are disposed outside the magnetic core of the transformer respectively, the first metal sheet of each metal module is electrically connected to the primary winding of the transformer, and the second metal sheet of each metal module is electrically connected to the secondary winding of the transformer. 
     
     
         8 . The metal module according to  claim 1 , wherein the metal module and the transformer are disposed on a circuit board, and there is an interval between the metal module and the transformer, the first metal sheet and the second metal sheet of the metal module are electrically connected to the primary winding and the secondary winding of the transformer through a conductor respectively. 
     
     
         9 . A manufacturing method of a metal module comprising steps of:
 (a) providing the metal module comprising a first metal sheet and a second metal sheet;   (b) immersing the first metal sheet at a distance with the second metal sheet in a liquid glue within a container;   (c) curing the liquid glue into a dielectric layer after a curing time; and   (d) electrically connecting the first metal sheet to a primary winding of a transformer, and electrically connecting the second metal sheet to a secondary winding of the transformer,   wherein the metal module is disposed outside a magnetic core of the transformer.   
     
     
         10 . The manufacturing method according to  claim 9 , wherein the dielectric layer covers the first metal sheet and the second metal sheet. 
     
     
         11 . The manufacturing method according to  claim 10 , wherein a part of the dielectric layer is disposed between the first metal sheet and the second metal sheet, and the part of the dielectric layer is configured to electrically insulate the first metal sheet and the second metal sheet from each other. 
     
     
         12 . The manufacturing method according to  claim 9 , wherein the metal module is configured to offset a part of an interlayer capacitance of the transformer, and a size of the first metal sheet and the second metal sheet depends on a magnitude of the interlayer capacitance needed to be offset.